Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Distribution of (A) PCV7, PCV13/non-PCV7, PPV23-only serotypes, and non-vaccine serotypes (NVTs) and (B) major non-vaccine serotypes (NVT) among pneumococci from different age groups, 2002-2018. Non-typeable isolates are not included in these figures.
